Most usually symptoms of the food allergy are: Feeling of tingling in the mouth Tongue and throat swelling Problem with breathing, difficult breathing Hives Vomiting Crams in the stomach Diarrhea Blood pressure In the worst cases death Usually these signals appear after minutes to two hours after that you have entered certain food on which you are allergic. Fur is not allergens as itself, but while your dog is grooming, collected dander and saliva that spread in the air make ideal conditions for allergy. Usually the time that is necessary for occurring of these allergens is about five to thirty minutes. But, there are and examples where occurring of allergens come much latter than usual. At last the worst result it total failure of the organs in your body. Hypersensitized State And How Does Your Immune System Comes Into It There are more doctrines about how immune system goes into a hypersensitized state. The most logical explanation is that allergies are connected with genetic codes and that they always caused by protein. The majority of the people are thinking that cat allergy is caused with the allergens from the cat dander. But, the most of the allergens are come mainly from seat and saliva. These allergens contain a carbohydrate structure which is also known as Fel d 1. This is the main allergen which causes allergy on cat. The number of the people who have looked for the medical help when they had attack caused with the peanut is very small. Still, doctors recommend that people should to look for the medical help when their children or they get some of the allergy symptoms caused with peanut. It is because the number of the people who are dying from the food allergy is big. Symptoms of Sinusitis Usually the symptoms of allergy and sinusitis are similar. Still, sinusitis is often followed with pressure on the face or with pain, usually in the period of the end of the bending, green or yellow mucus or post nasal drip mostly at night. Also, chronic sinusitis may be longer duration than allergies.